in R you want to require "\n" and not "\n" as the line separator if the aim is to create shapes in formatted strings:

cat("aaa\nbbb")

aaa

bbb

cat("aaa\\nbbb")

aaa\nbbb

Proposed C# translation: https://www.codewars.com/kumite/65f3080bf4a0f70c9914c7d2?sel=65f3080bf4a0f70c9914c7d2

C#:

• No random tests

• Method name should be PascalCase (Please refer to implementation of backward compatibility here )

This kata is a subject to deduplication process here: https://github.com/codewars/content-issues/issues/195.
Please join the discussion to help us identify duplicate kata and retire them.

• Description should be reworded and reformatted for clarity

• Node 14. should be enabled

• Rust translation
• Go translation

JS: Node v14 should be used along with its appropiate assertion tools (Mocha + Chai).
Refer to this and this

There is a rule that N will always be > 0, but in tests I'm getting N = 0 (eg. N=0 X='w' Y='#'). Please, fix it.
Thanks.

The length of X is always 1, which isn't documented (or what does "a key of X" even mean?).

Ruby 3.0 should be enabled, see this to learn how to do it

Please organize the structure of test fixture as following (although it has been mentioned in the attached link, I'm repeated here again)

describe "<This message should describe the categories of test groups inside this block>" do
  it "<A short message describing this test group>" do
    expect(...).to eq(...) #Assertions
    #Or Test.assert_equals(user_response, reference_response)
  end
end

Ruby 3.0 should be enabled.

Julia translation

There is no test case in which the non-alphanumeric character is in the beginning or the middle.

C++ Translation

Please look at it

C# version has random string length tests, eventhough the description says otherwise.

"Both strings will be of length 18, and each character in the string will be a number between 1 and 9 inclusive."